Triangular screwdriver handle



FIG. 1 is a top plan view of the triangular screwdriver handle constituting our new design, the shank being shown in phantom and thus not forming part of the claimed invention;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a side elevational view thereof, the other side being identical;

FIG. 4 is a front view thereof; and,

FIG. 5 is a rear view thereof. 

The ornamental design for triangular screwdriver handle, as shown and described. 